
Ancient animal’s fossilised brain prompts rethink of spider evolution
Mollisonia, a Cambrian period marine animal, may have been an early arachnid Junnn11 @ni075 CC BY-SA 4.0 The brain of a sea creature that lived over 500 million years ago was organised like that of a spider – suggesting that arachnids may have not evolved on land as previously thought. Mollisonia lived during a period…